package com.brian.demo.netty;

import io.netty.bootstrap.Bootstrap;
import io.netty.channel.Channel;
import io.netty.channel.EventLoopGroup;
import io.netty.channel.nio.NioEventLoopGroup;
import io.netty.channel.socket.nio.NioSocketChannel;

import java.util.Scanner;

/**
 * Created by Brian on 2018/4/20 14:22
 */
public class SimpleChatClient {

    private static String host = "localhost";
    private static int port = 8888;

    public static void main(String[] args) throws Exception
    {
        new SimpleChatClient(host, port).run();
    }

    public SimpleChatClient(String host, int port)
    {
        this.host = host;
        this.port = port;
    }

    public void run() throws Exception
    {
        EventLoopGroup group = new NioEventLoopGroup();
        try {
            Bootstrap bootstrap  = new Bootstrap()
                    .group(group)
                    .channel(NioSocketChannel.class)
                    .handler(new SimpleChatClientInitializer());
            Channel channel = bootstrap.connect(host, port).sync().channel();
            Scanner sc = new Scanner(System.in);
            System.out.println("please enter...");
            boolean exit = false;
            // 输入exit，退出系统
            while(!exit)
            {
                String str = sc.next();
                channel.writeAndFlush(str + "\r\n");
                if(str.equalsIgnoreCase("exit"))
                {
                    exit = true;
                    channel.close();
                }
            }
        } catch (Exception e) {
            e.printStackTrace();
        } finally {
            group.shutdownGracefully();
        }
    }
}
